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Seasonal Variability of Surface Currents in Cempi Bay, NTB Based on ADCP and HYCOM Data Havis, Muchammad Iqbal; Hartanto, Mochamad Tri; Hidayat, Esa Fajar; Sembiring, Agustinus; Nabil, Nabil
Indonesian Journal of Oceanography Vol 8, No 1 (2026): Indonesian Journal of Oceanography
Publisher : University of Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijoce.v8i1.28865

Abstract

This study investigates the seasonal variability of surface currents in Cempi Bay, located on the southern coast of Sumbawa Island, Indonesia. Using Acoustic Doppler Current Profiler (ADCP), the data were collected during the Northwest Monsoon (NWM, February 2023) and Southeast Monsoon (SEM, August 2023), along with surface current data from the Hybrid Coordinate Ocean Model (HYCOM), we analyzed tidal and residual current dynamics at two observation points. Harmonic analysis revealed that during the NWM, currents at the eastern inner bay (ADCP-01) were predominantly tidal (76.83%), while in the western inner bay (ADCP-02), residual currents (52.30%) slightly exceeded tidal contributions. Conversely, during the SEM both stations experienced more balanced contributions in approximately 59% at both locations, with residual current influence increasing to 40–41%. HYCOM data depict the general direction of currents spatially well, but tend to underestimate at small scales as nearshore. The findings highlight the significant role of both tidal forces and monsoon-driven residual currents in shaping the seasonal surface current dynamics of Cempi Bay, providing a valuable baseline for oceanographic monitoring and coastal management in the region.
Video Conference Rental Business Application Design At Pt. Alfa Copies Android-Based Virtual Technology Nabil, Nabil; Mohammad Arif, Sutan; Zikriah, Zikriah
Journal of Renewable Engineering Vol. 1 No. 3 (2024): JORE- June
Publisher : Pt. Anagata Sembagi Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62872/tpe2jq45

Abstract

The purpose of this research is to determine the process of managing device rental data, tenant profiles, tenant transactions, device rental dates, payments, tenant data reports, product and price reports, sales transaction reports, bill payment reports at PT. Alfa Cipta Virtual Technology. The method used to process this activity is a qualitative method (System Life Cycle (SDLC)), namely to design, build, maintain and develop a system. After the author designs, builds and develops a device rental system, finally the author can draw the conclusion that management The device rental business becomes more dynamic and simpler so that it can improve sales and admin sales performance. Making sales transaction reports and tenant data reports is much faster because management can be accessed via an application on a smartphone.